Gas burner



April 2, 1929- J. v. THOMAS E! XL 1,707,451

' GAS BURNER Fi led Feb. 4, 1925 JO/Y/V Y T/YOMAS BEA DOVGZMSMIWSINVENTORS A 4 2 g B" A TTORNE Y.

.7 said objectionable:

Patented Apr. 2,

UNITED sT JOHN v. THOMAS, or wnrr'rrnn, Ann "BEN noueLAss BALTHIS, orGLENDALE,

, 7 CALIFORNIA; 1

ens BURNER;

, Application filed February: 4, 1925. Serial no. 6,6i35. I

Our invention relates to an improvement in furnaces andburners therefor,and .hasas an object to simplify and render more eifiv p from saldnozzle, the resulting mixture being cient the operation of said furnacesand burners now on the marketand in'general use. e l

Many of the gas burners on the market and accord gas pressure. is almostimpossible in the known devices to obtain a proper and effective mixtureof air and gas, resulting in the deposit of carbon in the furnaceandresulting in a serious loss in efficiency. A still further objectionto the burners on the m-arketis that they frequently become clogged,which also results in a marked decrease .in efiiciency. V

By the use of our invention all the aforefeatures are overcome, saidinvention comprising an. exceedingly simple, efficient, durable andinexpensive device, which is economical in gas consumption, which willeffectively eliminate all cars bon deposits, and which is almostimpossible f to get out of order; i

It is an object of our invention to produce a burner lIl-Wl1lCl1 thenumber of parts is reducedto a ru1;nimum,.' and which may be installedin furnaces, for example, at a minimum cost, and at the same timeafford] an economical means for running said furnaces atfull capacityand efficiency.

Another object oiour invention is to provide a gas burner in which a gasnozzle is mounted in a frame which has associated therewith an air ntakemember affordmg a free and unobstructed flow; of J 1I,Wl11Ch air isdeflected and concentrated about said nozzle, and directed" forwardly ina line with the flow of gas from said nozzle, theresulting mixture ofair and gas being conveyed to an outlet chamberin which said mixture isdeflected and concentrated to an elongated flame nozzle which'hasassociated therewith a deflectin member so that said fla'me will bespread out fan-shaped.

A still further object of our inventionjis toprovidea gas burner in.which' an elon- 1' gated casing, either sectional, or constructed inone continuous piece, is associated with a gas nozzle carrying frame,said casing affordinga means for concentnting the flow disclose theinternal construction,

of air about said nozzle, and deflecting said air to a mlxing chamber insaid casing, in a straight line with the flow of the gas issuing flamemay be produced, which flame is spread out fan-shaped by means of afiamedeflecting member.

. Another object of our invention is to positi on "our improved" burnerwithin a circular or other shaped member to provide ,an additionalYair'supply in order that a more thorough and intimate. mixture may be.p'rovided for combustion, thus effectively'eliminating all danger ofcarbon deposit It is also within the p-rovmce'of our invention toarrange our improved burners in series 'or in multiple so that anydesired number may be, used, especially where a single burner will notbe sufiicient toproduce the heat required. 'As is well'known, it is-"not "practical to force a burner'beyond its critical pointofefliciency, and it is therefore necessary to install abu'rner'of alarger size,

or, as just suggested, provide an added num-v ber of-such'burners. Aswill be obvious,

such a feature is contemplated by the use of our invention. I i

further objectof our invention is to :equip our improved burner with ameans for supporting the same within one or more tubular 'orothershapedair members, such fair members being positioned within onethe walls of the furnace 1th, which' said burner is adapted to beassociated.

It is moreover withinthe province of our invention to provide anassembly of rectangular or other shaped airmembers, which members",'ifdesired,'may be equipped with a means for readily assembllng anddisassembling such air members, such means, if

' preferred, comprising any desired number of groove and projectio1 iconnections, positioned on said members wherever needed.

Further objects andadvantages .of our invention will become more 'apparent 'as the description thereof proceeds; 1 f

Reference is had. to: the accompanying drawings in whichsimilarreference ,charactersdenote similar parts. In the drawings,

Fig. l is a side elevational view of our din-proved" burner, partlybroken away to f Fig. 2 is a similar view of a. modification,

Fig. 3 is an end elevational view of Fig. 1, looking from left to right,

Fig. 4 1s a cross-sectional view of Fig. a on the line H,

i o is an one view an assem y members which may be used in connectionwith our improved burner, one of such a burners being shown in positionin said members,

Fig. 6 is a fragmentary sectional View showing the use of our improveddevice in connection with a circular air member, said memberbeing shownin position in one of the walls of a furnace, and

Fig. 7 is a cross-sectional view of Fig. 6 on the line 77.

Describing our invention more in detail, our improved burner comprisesan elongated casing, either sectional or formed in one continuous piece,and constructed of suitable material, which casing has associatedtherewith a frame of any preferred shape, preferably consisting of anupper member land a lower member 2, in which frame a gas nipple 12;, towhich a gas pipe p is attached, is mounted in any preferred manner, agas nozzle. N being screwed or otherwise mounted in said nipple, thenumeral 3 designating the threads.

To provide for a free and unobstructed flow of the air, as will beobserved from Figs.

1 and 2, the frame housing the nozzle N is of such a form as to providefor said air flow. Moreover, the air intake member i is suflicientlylarge, and the nozzle N is posiioned concentrically with said air intakeso that an intimate mixture of gas and air may be provided, said gasnozzle projecting nto an air chamber 4, shaped as shown,

; to provide for an air flow in'a straight line w th the flow of gas1ssu1ng from said gas nozzle. It will also be noted that the air chambera is tapered so to concentrate and deflect the air to the mixing chamber5, which is preferably, though not necessarily, cylindrical in shape.

The arrangement thus far described, it

will be noted, provides for the formation of an effective mixture of airand gas so that the resulting ,flame will be thoroughly efficient andwill effectively avoid the deposit of soot or unconsumedcarbon, which,as is well known, is a non-conductor of heat, and renders the effect ofthe flame, inefficient.

The end 6 of the mixing chamber 5, as.

for convenience of assembly. The collar or annular projection 7 haspositioned therein a set screw or other member 8 to provide a means formore effectively holding the outof air let chamber in'position, whichoutlet chainher if desired, may be associated with the 5 by means of adriving has its flame end flattened or elongated to provide a means fordeflecting and concentrating the mixture so that the resuluting flame,when said mixture shall have been ignited, will be fan-shaped, thusaffording a very eflicient and intense flame. If desired, the outletchamber may be provided with a concentrating or deflecting portion 10whereby the mixture may be efficiently concentrated and deflected to theflame orifice or nozzle F, which is preferably elon-' gated in shape, asshown in Fig. 3. To form an additional means for deflecting the flame, adeflector or deflecting member 1) either integral with the member'll, orassociated therewith in any desired manner, is provided. It will beclear that the provision of said deflector, as well as the shapethereof, and the shape of the flame nozzle or orifice F, afford anexcellent means for providing a thoroughly efficient flame.

In the form of our invention shown in Fig. 2, we have provided a burnerin which the casing is constructed of one continuous piece, either castout of any desired-material, such as iron, aluminum, etc, orconstructedin any manner that in practice may suggest itself.

This form of our invention has also a frame, composed, if desired, of anupper member 1 and a lower member 2, and in which frame a gas nipple ais suitably mounted, which nipple has associated therewith a gas pipe39. The gas nozzle N is screw-threaded'as indicated at fi into thenipple a, providing a means whereby the distance to which the gas nozzleis projected into the air chamber 4 may be adjusted. As in the formshown in Fig. 1, the nozzle. N is concentric with an air intake i. Themixing chamber 5 is also preferably, though not necessarily, cylindricalin shape, and the outlet chamber 11 is provided with a deflecting andconcentrating'portion 10, said outlet chamber terminating in a flamenozzle or orifice F, which outlet chamber and flame nozzle or orificehas also associated therewith a deflecting member D, the entire burner,except the gas nozzle and nipple being in this form of one integralconstruction.

p In Fig. 5 we have shown an assembly of air members, which, if desired,may be used in connection with our improved burner. The air members 0are shown square in cross-section, though it is obvious that they may beofany sliape found in practice desirable. By the use of such air membersan means comprising a pair all modifications with which the anyconvenient number of grooves g and projections g associated therewith toprovide for a ready assembly and disassembly of said air members, of anynumber needed. It will be clear that, if desired, the sides as well asthe tops and bottoms of said tubes or inembers. may be provided withsuch grooves and projections. To provide a means for mounting the burnerwithin the air members, the walls thereof may be equipped with asupporting of curved supporting devices 3, either integral with orsecured to said walls in any preferred manner; and if desired, suchdevices may be located at the top indeed on all Walls thereof.

In use, the air members are positioned within the wall of the furnace,additional members being supplied as needed, by slipping the projections9 within the groovesg of the members.

In the form shown in Fig. 6,.a circular air member 0' is used inconnection with the burner and the furnace f, the burner beingpositioned as shown, with its flame end within said air member. Thisfeature is important since the aspirating effect of such a constructionproduces the results hereinbefore explained;-intimate and propermixture, highest efficiency and total lack of'carbon deposit. v s

As shown in Fig. 6, the burner is adjustably mounted in the air tube ormember 0, a pair ofpegs s screwed or otherwise associated with thecasing of the burner, being provided for this purpose. But it. will beclear that other means for adjustably mounting the burner in the airtube may be substituted for that shown and described.

lVhile wehave thus described our invention With great particularity, itwill be obvious that the same may be modified throughout a wide range.We therefore do not propose to be limited to the exact details ofconstruction shown and described, but reserve the right in practise'tomake any and I thereof that fall within the scope of the'appendedclaims.

We claim as our invention:

1. In an apparatus of the class described, an air tube, a support insaid tube and adapted to be longitudinally adjusted there,- in, a burnerin said tube and adapted to be adjusted with said support, said burnercoma skeleton frame, a gas nozzle exprising tending through said frame,a casing ex--' tending from said frame, said nozzle projecting in saidto insure that there will, be no deposit which members may be and bottomof said members, or

- and positioned between the upper and lower said outlet portion, pmeans extending from said outlet P01131011,

names to this casing and being adapted to be adjusted relative to thelongitudinal length of said casing, said casing comprising a taperedinlet portion, a. cylindrical portion and a tapered outlet portion, anda-fiattened flame nozzle extending in direct'horizontal alignment withand from said outlet portion.

2. Ina combined gas burner and air -aspirating apparatus,;a setof airtubes, means associated with said tubes for preventing their relativemovement, a-v gas burner n each of said tubes, each of said burnerscomprising an elongated skeleton frame, a gas nozzle extending throughsaid frame, means for adjusting said nozzlelongitudinally in said frame,said frame defining openings whereby the air may be introduced sidewaysthereof, a casing integral with said frame, said casing comprising atapered inlet portion, nozzle, extending from said outlet portion arcsof said outlet portion, and a frame defiectingelement on said nozzle andalso positioned between said arcs.

3. In a combined gas burner and. air aspirating means, an air aspirating'means comprising an air aspirating tube, a casing in saidtube,adjustiiig means in said tube for supporting said casingin saidtube and adjusting said casing along the longitudinal length thereof,said casing with means whereby airinay be introduced laterally and thenlongitudinally thereof, a

gas-nozzle projecting in said casing, said caslng being graduallytapered from its air inlet to said gas nozzle to concentrate theentering air about said gas nozzle, said casing having a cylindricalportion for mixing of said tubes for adjustably supporting saidburners,.each of said burners comprising a casing provided with meansfor admitting air laterallythereto, a gas nozzle adjustably positionedwithin said means, said casing.

comprising a tapered inlet portion, a cylindrical portion, and ataperedoutlet portion, a fa-n shaped flame nozzle projecting wardly inalignment with and laterally from and a flame deflecting and positionedabove said flame nozzle;

a cylindricalfportion, and a tapered'outlet portion, an, elongated flamebeing provided.

for-' lll) Intestimony whereof we have signed our specification. f JOHNV. THOMAS. BEN DOUGLASS BALTHIS.

